Osteoporosis is responsible for as many as half of all fractures in women and one in four in men over the age of 50…but a new test could give people decades of warning. A study in the journal PLOS ONE describes a new genetic screening test that may predict a person’s future risk of osteoporosis and bone fracture. That would allow people to take vitamin D, calcium and participate in weight-bearing exercise to stave off later ill effects.

And finally…friendship might be priceless…but is it timeless? A new study in the Journal of Social and Personal Relationships shows it takes more than 200 hours of togetherness before someone can be considered a close friend. But experts say it’s worth it. They say time and activity shared are strategic investments toward sustaining our belongingness needs.

Today more than half of American adults are single. Many are still looking for love–more than 40 million are members of online dating sites, which have their busiest time of the year between now and Valentine’s Day. A noted psychologist explains research showing most users take the wrong approach when seeking a good match online, and discusses how they can better their odds of finding true love.